Over control of the Western Mediterranean.
The Roman Empire .
The growing Roman empire and its North African proxies, and Carthage and its mercenaries.
They were absorbed into the Persian Empire in the east, and Carthage was absorbed into the Roman Empire in the west.
Carthage was a settlement for retired soldiers.
Carthage
They used elephants
It was over control of the Western Mediterranean.
The Roman name for Carthage was "Carthago." Located in present-day Tunisia, Carthage was a major rival of Rome, particularly during the Punic Wars. Following its defeat in the Third Punic War, Rome destroyed Carthage in 146 BC but later rebuilt it, making it an important city in the Roman Empire.
The Roman Empire and Carthrage were fighting in the Punic Wars.
It found itself clashing with its ally Carthage in Sicily.
Constantinople,Byzantium, New Rome or all as we know Istanbul.. but if its about military power of Roman Empire then Carthage
It's defeat of rival Carthage for control of Western Europe.